I’d prefer not.
Discussion
Taxes is the equivalent of trying to figure out how a large group at a restaurant should split the check on an exponential scale. You can call it something else. End of the day someone still needs to pay the bill.
Should the tax code be simplified, yes. Should we have a discussion about what gets taxed and how much, yes. Should we discuss what our taxes fund, yes.
And can this be decided centrally with an outcome that is different from the present one?
Please clarify what you mean by decided centrally
If a decision(a) needs to be taken and agreed upon/enforced universally, then I am assuming there’s a central authority that does it.
Do you consider government as a whole to be a central authority?